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Alfa Aesar™ o-Tolidine dihydrochloride, 97%

Chemical Identifiers

Chemical Name or Material o-Tolidine dihydrochloride
CAS 612-82-8
Molecular Formula C14H16N2·2HCl
Formula Weight 285.22g/mol
MDL Number MFCD00012960
UN Number UN3077
Synonym 4,4'-Diamino-3,3'-dimethylbiphenyl dihydrochloride; 3,3'-Dimethylbenzidine dihydrochloride
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Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAA1819614

 
alfa aesar™
A18196-14
25g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.

AAA1819622

 
alfa aesar™
A18196-22
100g CALL N/A N/A
 Please call Customer Service at 1-800-234-7437 or send an email to help@thermofisher.com for assistance.
Description & Specifications

Specifications

Melting Point >300°C
Odor Odorless
Quantity 25g
Chemical Name or Material o-Tolidine dihydrochloride
CAS 612-82-8
Assay 97%
Molecular Formula C14H16N2·2HCl
Formula Weight 285.22g/mol
MDL Number MFCD00012960
UN Number UN3077
Synonym 4,4'-Diamino-3,3'-dimethylbiphenyl dihydrochloride; 3,3'-Dimethylbenzidine dihydrochloride
Health Hazard 1 Danger
Health Hazard 2 GHS H Statement
H350-H302
May cause cancer.
Harmful if swallowed.
Health Hazard 3 GHS P Statement
P281-P264-P301+P312-P308+P313-P405-P501a
Use personal protective equipment as required.
Wash thoroughly after handling.
IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
IF exposed or concerned: Get medical advice/attention.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
DOT Information Transport Hazard Class: 9; Packing Group: III; Proper Shipping Name: ENVIRONMENTALLY HAZARDOUS SUBSTANCES, SOLID, N.O.S.
RTECS Number DD1226000
TSCA TSCA

Applications
o-Tolidine dihydrochloride is used as a sensitive colorimetric reagent for gold and for free chlorine in water.

Solubility
Soluble in water.

Notes
Air and light sensitive. Incompatible with oxidizing agents.

Safety and Handling

Danger

GHS P Statement
P281-P264-P301+P312-P308+P313-P405-P501a
Use personal protective equipment as required.
Wash thoroughly after handling.
IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell.
IF exposed or concerned: Get medical advice/attention.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H350-H302
May cause cancer.
Harmful if swallowed.